i try to scrape a website, for choosing every Category, i need to check a check box
<ul class="mvSrcLk">
<li>
<label class="mvNavSel mvNavLvl1">
Marché frais
<input type="checkbox" value="f/1/1p" name="selectedNavigationCategoryPath">
</label>
</li>
<li>
<label class="mvNavSel mvNavLvl1">
Épicerie sucrée
<input type="checkbox" value="f/1/1o" name="selectedNavigationCategoryPath">
</label>
how can do this by Scrapy, i read this but it doesn't helped me